Automatic lock sliders



Aug. 25, 1959 H. MORIN AUTOMATIC LOCK SLIDERS Filed March 5. 1955 INVENTOR LOU-l5 H.

MOR-lN ATTO RNE AUTOMATIC LOCK SLIDERS Louis H. Morin, Bronx, N.Y. Application March 5, 195's, Serial No. 340,560

1 Claim. c1. 24-20514 This invention relates to sliders for use on separable fasteners stringers to couple and uncouple the stringers. More particularly, the invention deals with what I term an automatic lock slider, having a spring actuated lock element for engaging scoops of the separable fastener to retain the slider against accidental movement on the stringer.

Still more particularly, the invention deals with a simple and economical method of attaching the look element with the slider body and assemblage of the pull therewith.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

Fig. 1 is a plan view of a slider, made according to my invention, with parts of the construction broken away, and with parts in section;

Fig. 2 is a central longitudinal section of the slider, as shown in Fig. 1, with parts of the structure shown in elevation; and

Fig. 3 is a plan view of one end portion of a lock element which I employ, showing the same in its initially formed position prior to assemblage with the slider body.

This application deals with automatic lock sliders of the type and kind disclosed in my prior application, Serial No. 229,638, filed June 2, 1951, now Patent No. 2,779,078 and this application constitutes a continuation in part of the structure as disclosed in said prior application.

My improved slider comprises a slider body 10, having top and bottom walls 11 and 12 joined at one end of the slider in a connecting web 13, the web dividing the channel 14 of the slider body at one end thereof, as with other devices of this type and kind. The channel 14 is formed at the contracted end of the slider by inwardly extending side flanges 15 and 16 on the walls '11 and 12, respectively.

The top wall 11 of the slider body has above the weban upwardly or outwardly projecting pivot member 17 The member 17 is in the form of a lug having a transverse aperture 18 therein. The slider body has adjacent the member or lug 17 a recess 19, which extends into the web portion 13, and the top wall 11 has at the other contracted end portion of the slider an aperture 20, which opens through said end of the wall and terminates at its inner end in a bevelled wall portion 21 (note Fig. 2) in alignment with the aperture 20. The wall 11 has an outwardly extending yoke-shaped strap 22 which forms a stop checking outward movement of a lock element 23. The lock element 23 is in the form of a die cast bar having a downwardly oifset portion 24 at one end which terminates in scoop engaging elements 25. The extension 24 also has at its lower end an outwardly projecting finger 26 which operates in connection with the stop strap Patented Aug. 25, 1959 22 to check outward swinging movement of the element 23 when moved outwardly by the pull, part of which is shown at 27 inFigs. 1 and 2 of the drawing.

The other end portion of the element 23 is offset downwardly, as seen at 28 in Fig. 2 of the drawing, and between the ofrset 28 and offset 24 is a recess or neck portion 29, in which the cross bar pivot end 30 of the pull 27 is adapted to operate. The pull has a large aperture or opening 31, which clears the element 23 as well as the stop strap 22, as will clearly appear from a consideration of Fig. 1 of the drawing. The offset end portion 28 of the look element 23 has an oblong aperture 32. The element 23 is formed in the manner illustrated in part in Fig. 3 of the drawing, so that the side wall portions 33 of the opening 32 extend outwardly to provide a wide spacing of the inwardly extended pivot portions 34 of the lock element, spacing these pivot portions sutficiently far apart so as to pass freely over the sides of the member 17 when positioned on the member 17 with the pivot portions 34 in alignment with the aperture 18. Pressure is applied to move the walls 33 into parallel relationship to the remainder of the side walls of the element 23, and to move the pivot portions 34 into the aperture 18 in the manner clearly shown in Fig. 1 of the drawing. The aforesaid operation permanently and pivotally couples the look element with the slider body.

The offset portion 28 of the lock element 23 has adjacent the aperture 32 a recess 35, which opens through the lower surface of the lement 23 and registers with the recess 19. Recesses 19 and 35 are adapted to receive a coil spring 36 which normally supports the elements or members 25 in scoop engaging position. The scoops of a fastener on which the slider operates are not shown, as such scoops and fasteners are well known in the art. It will be understood that, upon operation of the slider to move the same in either direction on a pair of stringers, actuation of the pull 27 will cause the element 23 to be swung outwardly on its pivot 34 against the action of the spring 36 to displace the members 25 from the scoops or the slider channel 14, facilitating free movement of the slider along the stringers. Upon releasing the pull, the spring 36 will then automatically move the members 25 into position operatively engaging the stringer scoops in retaining the slider against accidental movement.

It will be noted from a consideration of Fig. 2 of the drawing, that the lower surface 37 of the look element 23 beyond the pivot 34 is spaced with respect to the outer surface of the top wall 11 when the element 23 is in its operative position, and this spacing is suflicient to allow the lock element 23 to swing on its pivot in moving said element or members 25 into inoperative position.

For purposes of description, the end of the slider having the web joining the top and bottom walls may be said to be the wide end portion of the slider, and the other end the narrow end portion. The member 17 canbe termed a post, and the members 25 a lock finger or fingers for engaging the separable fastener.

It will be apparent that the apertured portion of the lock element is substantially equal in depth to the lreighth of the member or post 17, so that the post is substantially housed within the look element. It will also appear that suificient clearances are provided in the aperture of the lock element for the free swinging or pivotal movement of said element on the post.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

A look element blank adapted to be formed into a pivoted pin lock element for a slider of the class comprising a channel body having an outwardly projecting apertured post on one wall thereof, said blank having a continuous unbroken four-walled aperture at one end portion thereof for receiving said post, opposed side walls of said blank aperture being bulged outwardly, inner surfaces of said bulged side walls having inwardly projecting pivot members adapted to freely pass over said post and said pivot members being movable into opposite end openings of said post aperture by eompression of said outwardly bulged side walls toward each other to simultaneously straighten said side walls to form said lock element from said blank and pivotally attach said lock element to said post.

UNITED STATES PATENTS Weisler Nov. 25,

Corner Oct. 29,

Rabinow June 16,

Legat Aug. 16,

FOREIGN PATENTS Italy Jan. 19,

France May 16, 

